Hello there,
<span>A "start" and "stop" codon is what determine's where on the DNA transcription begins and where is also end's.
I hope this helps you!
~Jurgen</span>
<em>There are two types of vascular tissues witch are Xylem and Phloem</em>.
<em>Xylem is for water transport.</em>
<em>Phloem is for glucose.</em>
<em>Here is an extra just for you! ;)</em>
<em>Parenchyma for lateral transport of both. </em>
Evolution would be my guess.